Most people probably won’t hold or fire any guns in their lifetime, except maybe when they’re in the military, if they’re actors, when they’re playing video games, or if they’ve got one of these Gunshot Doorknobs.…

When the police encounter a locked door and can’t kick it open, they just shoot the doorknob and push their way inside. At least that’s what happens in the movies, anyway. For us ordinary, non-law-enforcement citizens,…